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(1R,18S,20R,21S,22R)-21,22-Bis-benzyloxy-20-benzyloxymethyl-2,5,8,11,14,17,19-heptaoxa-bicyclo[16.2.2]docosane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

157399-18-3

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157399-18-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157399-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,3,9 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157399-18:
(8*1)+(7*5)+(6*7)+(5*3)+(4*9)+(3*9)+(2*1)+(1*8)=173
173 % 10 = 3
So 157399-18-3 is a valid CAS Registry Number.

157399-18-3Downstream Products

157399-18-3Relevant academic research and scientific papers

Chiral crown ethers incorporating D-glucose

Kanakamma, Puthuparampil P.,Mani, Neelakandha, S.,Maitra, Uday,Nair, Vijay

, p. 2339 - 2344 (2007/10/02)

A novel class of crown ether derivatives incorporating D-glucose and poly(ethylene glycol) units has been synthesized from allyl α-D-glucopyranoside by a simple and efficient strategy.The complexing properties of these compounds with alkali metal cations and ammonium ion have been evaluated by Cram's picrate method.Catalytic activity of macrocycle 2 in asymmetric Michael addition reaction was also studied.The average cavity size of these macrocycles was determined by the application of the MMX programme.

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